internal/pkg: absolute hard link

This cannot be relative since the curing process is not in the temp directory.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/pkg/tar.go

@@ -175,7 +175,10 @@ func (a *tarArtifact) Cure(t *TContext) (err error) {
 			break
 
 		case tar.TypeLink:
-			if err = os.Link(header.Linkname, pathname.String()); err != nil {
+			if err = os.Link(
+				temp.Append(header.Linkname).String(),
+				pathname.String(),
+			); err != nil {
 				return
 			}
 			break